# Clinical investigations for electrically powered devices

Source: https://www.keypedia.com/records/uk_mhra_guidance/uk-mhra/65c0bfb3-376b-479c-9c19-47d901c8da7d
Type: Guidance
Published: March 30, 2026

> The UK Medicines and Healthcare products Regulatory Agency (MHRA) issued this guidance to assist manufacturers and investigators conducting clinical investigations of electrically powered medical devices. Operating under the UK Medical Devices Regulations 2002, the document details the rigorous technical information required for regulatory approval. Unlike general medical devices, electrically powered versions necessitate specific evidence regarding electrical safety and electromagnetic compatibility (EMC) to protect patient and user safety. Key issues addressed include risks of electric shock, thermal hazards, and interference with other essential medical equipment. Manufacturers are required to submit comprehensive test reports from accredited laboratories demonstrating compliance with recognized international standards, such as BS EN 60601. These reports must provide granular data on insulation, leakage currents, and protection against environmental factors, rather than simple summary certificates. Additionally, for devices incorporating software, applicants must provide risk assessments regarding power failures or electrical malfunctions. Required actions for applicants involve conducting thorough pre-clinical testing, compiling a detailed technical dossier, and ensuring all safety-critical components are adequately documented. This guidance ensures that all electrically powered devices undergo standardized scrutiny before being used in a clinical setting, thereby mitigating technical risks and ensuring high-quality clinical data collection.

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## Content

This guidance provides advice for people undertaking a clinical investigation of a medical device that is electrically powered, explaining the extra information that you should provide in your application.

## Attachments

- [Clinical investigations for electrically powered devices](/government/publications/clinical-investigations-for-electrically-powered-devices/clinical-investigations-for-electrically-powered-devices)